rebuilt carb not idling

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awdblazer

Master Mechanic
Dec 12, 2013
315
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i just rebuilt my carb because it wouldnt start after a day of sitting so i epoxied the wells and changed all gaskets and parts
its for a 1983 oldsmobile cutlass calais
305 th250
quadrajet
when i start it it wont idle at all will just die but if i keep my foot on the throttle it stays lite and runs F*CKIN wicked for a 305
 
My old 500cfm Edelbrock had the same symptoms. It would stall and load up at idle unless you kept the rpms like 300 above idle. It turned out to be a booster the the carb dripping at idle.
 
Did you replace the idle pickup tubes during your rebuild?
 
i havent touched those yet as i never touched them when i rebuilt the carb as it idled beautifully before this
 
GHP-Q2003-w500b.gif


actually how is this suppose to be set?
this may be my problem i unscrewed it 6 turns i thought when i removed it and i put it in 6 turns when i put it back in
but thinking about it now it bottomed out on 6 turns so maybe it was 6 half turns
hmmm thats what i will start with i guess
 
those are the idle mixture screws.....did you rebuild the carb without referring to a book?
 
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